Optimize Signal calculation

[stfl]

Currently the signal is calculated multiple times.
For a simple two lines cross this is simply checking if the lines crossed.
This happens multiple times.

before the state machine is processed Update() is already called on all of the indicators.
For further checking within the state machine it could simply read an already cached value

• m_signal_direction
• m_signal_side
• m_exit_direction

It might be enough to change the methods on AggSignal where the indicator states are read.
The following could read a cached value insead of calling for examle m_confirm.LongSignal() again.

backtestd-expert/Include/backtestd/SignalClass/AggSignal.mqh

Lines 105 to 125 in ab0f635

	bool ConfirmSignalLong() { return m_confirm && m_confirm.LongSignal(); }
	bool ConfirmSideLong() { return !m_confirm || m_confirm.LongSide(); }
	bool Confirm2SideLong() { return !m_confirm2 || m_confirm2.LongSide(); }
	bool ContSignalLong() { return m_continue && m_continue.LongSignal(); }
	bool ExitSignalLong() { return m_exit && m_exit.LongSignal(); }
	bool ExitSideLong() { return m_exit && m_exit.LongSide(); }
	bool BaselineSignalLong() { return m_baseline && m_baseline.LongSignal(); }
	bool BaselineSideLong() { return !m_baseline || m_baseline.LongSide(); }
	bool BaselineATRChannelLong();
	bool ContinueSignalLong() { return m_continue && m_continue.LongSignal(); }
	bool ConfirmSignalShort() { return m_confirm && m_confirm.ShortSignal(); }
	bool ConfirmSideShort() { return !m_confirm || m_confirm.ShortSide(); }
	bool Confirm2SideShort() { return !m_confirm2 || m_confirm2.ShortSide(); }
	bool ContSignalShort() { return m_continue && m_continue.ShortSignal(); }
	bool ExitSignalShort() { return m_exit && m_exit.ShortSignal(); }
	bool ExitSideShort() { return m_exit && m_exit.ShortSide(); }
	bool BaselineSignalShort() { return m_baseline && m_baseline.ShortSignal(); }
	bool BaselineSideShort() { return !m_baseline || m_baseline.ShortSide(); }
	bool BaselineATRChannelShort();
	bool ContinueSignalShort() { return m_continue && m_continue.ShortSignal(); }